RONJA RONJA Optical Optical Wi Wirele less ss Po Point T int To Po Point Et int Etherne ernet Kare rel K l Kulh lhavy, Zu avy, Zurich rich
Technical data ● 480,000 / 340,000 GHz – red, infrared ● 10Mbps full duplex ● BER 10^-9 ● RTT < 1ms ● Range 1.4km
Features ● Good chainability ● Realtime home cinema with Samba / 2 links ● No slowdown during 100% load ● Fails in dense fog ● Requires a solid mount
A link consists of... ● 4 magnifying glasses ● 4 smoke pipes ● steel parts ● 426 electronic components ● ~$300,- material ● ~70 hours building time
User friendly ● DIY friendly parts and construction ● Ready made PCB files ● No understanding needed ● Online instructions under GFDL licence ● Should work on the first try
History etc. ● Since 1998 ● 115.2 kbps first, 10Mbps Christmas 2001 ● 2x slashdotted ● 153 registered installations ● Slovak dormitory: 1000 students, 900m ● IEEE conference article ● NCSU experimental underwater link
Free Software ● Qcad, BRL-CAD ● Gschem, Gerbv, Gnucap ● Gnuplot, GNU R ● Gimp, Sodipodi, Autotrace, ImageMagick ● GNU Make, Subversion, Rsync
Continuing Development ● Bugfixes ● Releases of unreleased parts ● Increase range ● 100Mbps and 1Gbps would be nice
Thank You For Attention ● Twibright Labs Ronja ● http://ronja.twibright.com
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